Lennart Ljung
Encyclopedia
Lennart Ljung is a Swedish
Professor
in the Chair of Control Theory
at Linköping University
since 1976. He is known for his pioneering research in system identification
, and is regarded as a leading researcher in control theory
.
in Russian Language
and Mathematics
1967, the M.Sc. (first degree) in Engineering Physics
1970, and the Ph.D.
in Control Theory
1974, all from Lund University
.
at Stanford University
1974-1975 and a position as an Associate Professor (Docent
) in Control Theory
at Lund University
in 1975-1976, Lennart Ljung was elected as a Professor in the Chair of Control Theory
at Linköping University
in 1976. He was a visiting researcher at Stanford University
1980-1981 and at Massachusetts Institute of Technology
1985-1986. He was also Department Head of the Department of Electrical Engineering
, Linköping University
between 1981-1990. He is currently the Director
of the MOVIII Strategic Research Center at Linköping University
. He has made extensive contributions to control theory
, particularly in the area of system identification
. He has authored 10 books, over 150 international journal articles, over 200 international conference papers, and a widely used commercial software package for MATLAB
called the System Identification Toolbox.
Sweden
Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund....
Professor
Professor
A professor is a scholarly teacher; the precise meaning of the term varies by country. Literally, professor derives from Latin as a "person who professes" being usually an expert in arts or sciences; a teacher of high rank...
in the Chair of Control Theory
Control theory
Control theory is an interdisciplinary branch of engineering and mathematics that deals with the behavior of dynamical systems. The desired output of a system is called the reference...
at Linköping University
Linköping University
Linköping University is a state university in Linköping, Sweden. Linköping University was granted full university status in 1975 and is now one of Sweden's larger academic institutions. Education, research and PhD training are the mission of four faculties: Arts and Sciences, Educational...
since 1976. He is known for his pioneering research in system identification
System identification
In control engineering, the field of system identification uses statistical methods to build mathematical models of dynamical systems from measured data...
, and is regarded as a leading researcher in control theory
Control theory
Control theory is an interdisciplinary branch of engineering and mathematics that deals with the behavior of dynamical systems. The desired output of a system is called the reference...
.
Education
Lennart Ljung received the B.A.Bachelor of Arts
A Bachelor of Arts , from the Latin artium baccalaureus, is a bachelor's degree awarded for an undergraduate course or program in either the liberal arts, the sciences, or both...
in Russian Language
Russian language
Russian is a Slavic language used primarily in Russia, Belarus, Uzbekistan, Kazakhstan, Tajikistan and Kyrgyzstan. It is an unofficial but widely spoken language in Ukraine, Moldova, Latvia, Turkmenistan and Estonia and, to a lesser extent, the other countries that were once constituent republics...
and Mathematics
Mathematics
Mathematics is the study of quantity, space, structure, and change. Mathematicians seek out patterns and formulate new conjectures. Mathematicians resolve the truth or falsity of conjectures by mathematical proofs, which are arguments sufficient to convince other mathematicians of their validity...
1967, the M.Sc. (first degree) in Engineering Physics
Engineering physics
Engineering physics is the study of the combined disciplines of physics, engineering and mathematics in order to develop an understanding of the interrelationships of these three disciplines. Fundamental physics is combined with problem solving and engineering skills, which then has broad...
1970, and the Ph.D.
Ph.D.
A Ph.D. is a Doctor of Philosophy, an academic degree.Ph.D. may also refer to:* Ph.D. , a 1980s British group*Piled Higher and Deeper, a web comic strip*PhD: Phantasy Degree, a Korean comic series* PhD Docbook renderer, an XML renderer...
in Control Theory
Control theory
Control theory is an interdisciplinary branch of engineering and mathematics that deals with the behavior of dynamical systems. The desired output of a system is called the reference...
1974, all from Lund University
Lund University
Lund University , located in the city of Lund in the province of Scania, Sweden, is one of northern Europe's most prestigious universities and one of Scandinavia's largest institutions for education and research, frequently ranked among the world's top 100 universities...
.
Background, Present Appointments and Scientific Contributions
Following a position as a research associateResearch associate
The title of research associate is used to denote an academic research position at a university or similar institution. A research associate usually conducts research under the supervision of a principal investigator. In contrast to a research assistant or research officer, a research associate...
at Stanford University
Stanford University
The Leland Stanford Junior University, commonly referred to as Stanford University or Stanford, is a private research university on an campus located near Palo Alto, California. It is situated in the northwestern Santa Clara Valley on the San Francisco Peninsula, approximately northwest of San...
1974-1975 and a position as an Associate Professor (Docent
Docent
Docent is a title at some European universities to denote a specific academic appointment within a set structure of academic ranks below professor . Docent is also used at some universities generically for a person who has the right to teach...
) in Control Theory
Control theory
Control theory is an interdisciplinary branch of engineering and mathematics that deals with the behavior of dynamical systems. The desired output of a system is called the reference...
at Lund University
Lund University
Lund University , located in the city of Lund in the province of Scania, Sweden, is one of northern Europe's most prestigious universities and one of Scandinavia's largest institutions for education and research, frequently ranked among the world's top 100 universities...
in 1975-1976, Lennart Ljung was elected as a Professor in the Chair of Control Theory
Control theory
Control theory is an interdisciplinary branch of engineering and mathematics that deals with the behavior of dynamical systems. The desired output of a system is called the reference...
at Linköping University
Linköping University
Linköping University is a state university in Linköping, Sweden. Linköping University was granted full university status in 1975 and is now one of Sweden's larger academic institutions. Education, research and PhD training are the mission of four faculties: Arts and Sciences, Educational...
in 1976. He was a visiting researcher at Stanford University
Stanford University
The Leland Stanford Junior University, commonly referred to as Stanford University or Stanford, is a private research university on an campus located near Palo Alto, California. It is situated in the northwestern Santa Clara Valley on the San Francisco Peninsula, approximately northwest of San...
1980-1981 and at Massachusetts Institute of Technology
Massachusetts Institute of Technology
The Massachusetts Institute of Technology is a private research university located in Cambridge, Massachusetts. MIT has five schools and one college, containing a total of 32 academic departments, with a strong emphasis on scientific and technological education and research.Founded in 1861 in...
1985-1986. He was also Department Head of the Department of Electrical Engineering
Electrical engineering
Electrical engineering is a field of engineering that generally deals with the study and application of electricity, electronics and electromagnetism. The field first became an identifiable occupation in the late nineteenth century after commercialization of the electric telegraph and electrical...
, Linköping University
Linköping University
Linköping University is a state university in Linköping, Sweden. Linköping University was granted full university status in 1975 and is now one of Sweden's larger academic institutions. Education, research and PhD training are the mission of four faculties: Arts and Sciences, Educational...
between 1981-1990. He is currently the Director
Director-general
The term director-general is a title given the highest executive officer within a governmental, statutory, NGO, third sector or not-for-profit institution.-European Union:...
of the MOVIII Strategic Research Center at Linköping University
Linköping University
Linköping University is a state university in Linköping, Sweden. Linköping University was granted full university status in 1975 and is now one of Sweden's larger academic institutions. Education, research and PhD training are the mission of four faculties: Arts and Sciences, Educational...
. He has made extensive contributions to control theory
Control theory
Control theory is an interdisciplinary branch of engineering and mathematics that deals with the behavior of dynamical systems. The desired output of a system is called the reference...
, particularly in the area of system identification
System identification
In control engineering, the field of system identification uses statistical methods to build mathematical models of dynamical systems from measured data...
. He has authored 10 books, over 150 international journal articles, over 200 international conference papers, and a widely used commercial software package for MATLAB
MATLAB
MATLAB is a numerical computing environment and fourth-generation programming language. Developed by MathWorks, MATLAB allows matrix manipulations, plotting of functions and data, implementation of algorithms, creation of user interfaces, and interfacing with programs written in other languages,...
called the System Identification Toolbox.
Notable Honors and Awards
- IEEE FellowFellowA fellow in the broadest sense is someone who is an equal or a comrade. The term fellow is also used to describe a person, particularly by those in the upper social classes. It is most often used in an academic context: a fellow is often part of an elite group of learned people who are awarded...
(1985) - Member of the Royal Swedish Academy of Engineering SciencesRoyal Swedish Academy of Engineering SciencesThe Royal Swedish Academy of Engineering Sciences or Kungl. Ingenjörsvetenskapsakademien , founded in 1919 by King Gustaf V, is one of the Royal Academies in Sweden...
(1985) - Member of the Swedish Academy of Sciences (1995)
- Doctor honoris causa Baltic State Technical UniversityBaltic State Technical UniversityBaltic State Technical University "Voenmeh" D.F.Ustinov is a major Russian military technical university situated in Saint Petersburg. Previously it was known as the Leningrad Mechanical Institute and Military Mechanical Institute .-Faculties:...
(1996) - Doctor honoris causa Uppsala UniversityUppsala UniversityUppsala University is a research university in Uppsala, Sweden, and is the oldest university in Scandinavia, founded in 1477. It consistently ranks among the best universities in Northern Europe in international rankings and is generally considered one of the most prestigious institutions of...
(1998) - Honorary Member of the Hungarian Academy of Engineering Sciences (2001)
- Quazza Medal (2002)
- Hendrik W. BodeHendrik Wade BodeHendrik Wade Bode , was an American engineer, researcher, inventor, author and scientist], of Dutch ancestry. As a pioneer of modern control theory and electronic telecommunications he revolutionized both the content and methodology of his chosen fields of research.He made important contributions...
Lecture Prize, awarded by IEEE Control Systems SocietyIEEE Control Systems SocietyIEEE Control Systems Society is an organizational unit of the IEEE. It was founded in 1954 and is dedicated to the advancement of the theory and practice of systems and control in engineering.-History:...
(2002) - Foreign Associate of the United StatesUnited StatesThe United States of America is a federal constitutional republic comprising fifty states and a federal district...
National Academy of EngineeringNational Academy of EngineeringThe National Academy of Engineering is a government-created non-profit institution in the United States, that was founded in 1964 under the same congressional act that led to the founding of the National Academy of Sciences...
(2004) - Doctor honoris causa Universite de Technologie de TroyesUniversity of Technology of TroyesThe University of Technology of Troyes is a French university, in the Academy of Reims.The UTT is part of the network of the three universities of technology, found by the University of Technology of Compiègne...
(2004) - Doctor honoris causa Katholieke Universiteit LeuvenKatholieke Universiteit LeuvenThe Katholieke Universiteit Leuven is a Dutch-speaking university in Flanders, Belgium.It is located at the centre of the historic town of Leuven, and is a prominent part of the city, home to the university since 1425...
(2004) - IEEE Control Systems AwardIEEE Control Systems AwardThe IEEE Control Systems Award is a technical field award given to an individual by the Institute of Electrical and Electronics Engineers "for outstanding contributions to control systems engineering, science or technology"...
(2007)
See also
- System IdentificationSystem identificationIn control engineering, the field of system identification uses statistical methods to build mathematical models of dynamical systems from measured data...
- Control TheoryControl theoryControl theory is an interdisciplinary branch of engineering and mathematics that deals with the behavior of dynamical systems. The desired output of a system is called the reference...
- Electrical EngineeringElectrical engineeringElectrical engineering is a field of engineering that generally deals with the study and application of electricity, electronics and electromagnetism. The field first became an identifiable occupation in the late nineteenth century after commercialization of the electric telegraph and electrical...